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3A-8平面向量的表示法

Authored by 胡慧真 胡慧真

Mathematics

9th - 12th Grade

3A-8平面向量的表示法
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7 questions

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1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Media Image

請選出所有與 PQ\overrightarrow{PQ} 相等的向量。 

 PR\overrightarrow{PR}  

 AR\overrightarrow{AR}  

 RA\overrightarrow{RA}  

 RC\overrightarrow{RC}  

 QR\overrightarrow{QR}  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

若A點的坐標為(3,-4),且 a=OA\overrightarrow{a}=\overrightarrow{OA} ,則 a\overrightarrow{a}  = 

(3,4)

(3,-4)

(-3,4)

(-3,-4)

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 a=(5,9)\overrightarrow{a}=\left(5,9\right) ,則 a\overrightarrow{a}  的 x 分量為

5

9

4

14

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 a=(5,12)\overrightarrow{a}=\left(5,12\right) ,則 a\overrightarrow{a}  的 y 分量為

5

12

13

17

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 a=(5,12)\overrightarrow{a}=\left(5,12\right) ,則 a=\left|\overrightarrow{a}\right|=  

5

12

13

17

6.

MULTIPLE CHOICE QUESTION

45 sec • 2 pts

A(1,1)、B(3,2),則 AB=\overrightarrow{AB}=  

(2,1)

(3,4)

(4,3)

(1,3)

7.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

觀念1:向量是什麼? (單選題)
若 A ( 0, 1 ) 走到 B ( 3 , 5 ) 
則 向量AB為 ( a , b ),長度  =?

a = - 3 , b = - 4 ,長度 = 5

a = 3 , b = 4,長度 = 5

a = - 3 , b = 4, 長度 = - 5

a = 3 , b = - 4, 長度 = -5

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